HDX 40mm Helmet Speaker Set for Motion Series (Speakers Only/Microphones not included) Extreme high definition and clean, powerful bass combined in a premium unviversal-fit helmet speaker. We updatd our popular HDS10 speakers with the incredible new HDX coated drivers for unmatched audio quality. The 3.5mm jack allows use with popular com systems, and we include a 3′ break-away extension cable for use with external devices.

• Premium HDX coated 40mm drivers
• Gold-plated 3.5mm jack
• 4.5` speaker to jack, plus 3′ extension cable
• Universal fit for most helmets
• 122dB/m +/- 3dB sensitvity
• Impedance 32ohms
• See also HDX Speakers(#024641) if you want a larger speaker with more volume!
• Compatibility with UCLEAR MOTION Series requires adaptor (#024643)
• Compatible with any audio device with 3.5mm jack output